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Thread: fuel consumption desert P38 V8

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    fuel consumption desert P38 V8

    Hi all,

    Since I have no deserts or long sand tracks near me this is not something I can test but I would like to be somewhat prepared when I do come across one on my journeys.

    Currently I only have the standard fuel tank and a 5 litre standard plastic thingy in the spare wheel well. I think I will need a lot of jerrycans or a long range fuel tank at the least to be able to cross certain tracks but I have no idea what I should plan for. I do believe it is generally accepted that one should be able to travel 1000km's without refueling but that is kind of a useless figure without some fairly accurate fuel consumption figures.

    So here goes: anyone here with sufficient experience in this field? crossed the simpson or anything else with lots of sand and dune driving?

    Thanks!

    -P

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    p38arover's Avatar
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    I can't help with consumption figures but can tell you that long range tanks were made for the P38A by a company in Australia - Brown Davis. I had a 150 litre tank in mine. There are two variations, one for GEMS and one for the later Bosch Motronic cars.

    This is the one I had in my GEMS.

    P38A Long Range Tank 002.jpg

    This how far they hang down:

    P38A LR TAnk.JPG
    Ron B.
    VK2OTC

    2003 L322 Range Rover Vogue 4.4 V8 Auto
    2007 Yamaha XJR1300
    Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA



    RIP Bucko - Riding on Forever

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    Thanks!

    That does look the business but is it just me or does the fuel tank hang quite low? If so that would pose a serious clearing problem, potentially.

    I am currently thinking about converting my spare wheel well to a fuel tank. Of course I would insert a tank inside it, not convert the wheel well itself I reckon I could easily fit 90 litres in there. Most LPG conversion store a 90L donut shaped tank there I heard so if I make a square tank to fill the entire well I should have plenty of extra fuel. I'd close it of on top for safety and have baffle plates inside the tank etc. but I think that would be my best bet. I had hoped to use that space for water but that'll have to go someplace else then.

    Now just to get some fuel consumption figures and I'm golden

    -P

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    desert driving is usualy +20% of what your blacktop consumption

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    thanks

    I currently do ~ 14.8L/100KM unless I get caught in a (long) traffic jam or do city driving only so that would mean that'd go up to 17.8 roughly.

    Taking the 1000km between fueling as a baseline, I would end up with 178 litres. I guess that spare wheel well I idea might work out!

    -P

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    Quote Originally Posted by prelude View Post
    Thanks!

    Now just to get some fuel consumption figures and I'm golden

    -P
    Just finished Fraser Island trip with full load and trailer. Averaged 20L/100km in mostly firm sand.
    HTH
    Steve
    '95 HSE

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    I would think that you should plan on about 20-25L per 100Kms.

    It depends of course on your driving style ,how dry it is so how soft the sand, how chopped up the dunes are, and what detours you would have to take if it's wet.

    This is why diesels are popular for this type of thing, as they use comparatively less fuel in low accelerator position work as well as less fuel overall.

    Regards Philip A

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    During a weekend Navrun in our Little Desert here I was averaging around the 23-25L/100 with stock size tyres and fairly 'spirited' driving.

    Would desperately love a long range tank. One day.

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    Quote Originally Posted by p38arover View Post
    I can't help with consumption figures but can tell you that long range tanks were made for the P38A by a company in Australia - Brown Davis. I had a 150 litre tank in mine. There are two variations, one for GEMS and one for the later Bosch Motronic cars.

    This is the one I had in my GEMS.

    P38A Long Range Tank 002.jpg

    This how far they hang down:

    P38A LR TAnk.JPG
    It's been a couple of years, I know Anyway, since the build plans on the range rover are beginning to shape up for next years trip I revisited the whole "extra fuel" chapter and I came across this in my notes. I see the long range tanks are still available on the site of brown davis so it should be possible to obtain one. What I am currently looking into is the weight of several options, that being the most important factor of course. When I look up close it strikes that the tank is made of composite? Or is it made out of steel? Would you happen to remember what it weighed?

    Thanks!

    -P

  10. #10
    p38arover's Avatar
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    The tank was steel but I don't know what it weighed. I could pick it up. I also had an LPG tank in the spare wheel well.

    It's unlikely that Brown Davis have a tank in stock but anything is possible.
    Ron B.
    VK2OTC

    2003 L322 Range Rover Vogue 4.4 V8 Auto
    2007 Yamaha XJR1300
    Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA



    RIP Bucko - Riding on Forever

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